. >> reporter: today paul ryan admitted to campaign missteps including the 47% comment. >> we have had somis steps but at the end of the day the choice is really clear and we are giving people very clear choice. >> reporter: ryan was asked to discuss the specifics of the campaign tax plan. both romney and ryan have yet to tail how they would finance a 20% tax cut. >> it would take me too long to go through all of the math. >> that was kristin walker reporting. >>> it is time for fact or fiction segment checking the candidates claims against the facts. we will start with prauchl and his claim that taxes are lower on families than they have been in probably the last 50 years. that's not entirely true. average tax rates were slight lower in 1 '64, '63 and 2004. and mitt romney said college costs have risen 25% under the democrats that is not entirely true. college tuition for two year ands sup 23% but according to the education department when adjusted for inflation tuition is up 7 to 8% overall. >>> criminals who were sentenced to prison for life in california when they were juveniles co